// Copyright 2024 The Jujutsu Authors//// Licensed under the Apache License, Version 2.0 (the "License");// you may not use this file except in compliance with the License.// You may obtain a copy of the License at//// https://www.apache.org/licenses/LICENSE-2.0//// Unless required by applicable law or agreed to in writing, software// distributed under the License is distributed on an "AS IS" BASIS,// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.// See the License for the specific language governing permissions and// limitations under the License. use std::path::Path; use test_case::test_case;use testutils::TestRepoBackend;use testutils::TestWorkspace; use crate::common::TestEnvironment; #[test_case(TestRepoBackend::Simple ; "simple backend")]#[test_case(TestRepoBackend::Git ; "git backend")]fn test_root(backend: TestRepoBackend) {    let test_env = TestEnvironment::default();    let test_workspace = TestWorkspace::init_with_backend(backend);    let root = test_workspace.workspace.workspace_root();    let subdir = root.join("subdir");    std::fs::create_dir(&subdir).unwrap();    let output = test_env.run_jj_in(&subdir, ["root"]).success();    assert_eq!(        output.stdout.raw(),        &[root.to_str().unwrap(), "\n"].concat()    );} #[test]fn test_root_outside_a_repo() {    let test_env = TestEnvironment::default();    let output = test_env.run_jj_in(Path::new("/"), ["root"]);    insta::assert_snapshot!(output, @r#"    ------- stderr -------    Error: There is no jj repo in "."    [EOF]    [exit status: 1]    "#);}